Phys. Rev. B 78, 195325 (2008) [11 pages]Spin dynamics of two-dimensional electrons with Rashba spin-orbit coupling and electron-electron interactionsReceived 28 January 2008; published 24 November 2008 We study the spin dynamics of two-dimensional electron gases with Rashba spin-orbit coupling by taking account of electron-electron interactions. The diffusion equations for charge and spin densities are derived by making use of the path-integral approach and the quasiclassical Green’s function. Analyzing the effect of the interactions, we show that the spin-relaxation time can be enhanced by the electron-electron interaction in the ballistic regime. © 2008 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevB.78.195325
DOI:
10.1103/PhysRevB.78.195325
PACS:
72.25.Rb, 71.70.Ej, 71.10.Ca
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